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An electro-thermal computational study of conducting channels in dielectric thin films using self-consistent phase-field methodology: A view toward the physical origins of resistive switching
Journal of Applied Physics ( IF 3.2 ) Pub Date : 2020-10-28 , DOI: 10.1063/5.0027702
Foroozan S. Koushan 1, 2 , Nobuhiko P. Kobayashi 1, 2
Affiliation  

A large number of experimental studies suggest two-terminal resistive switching devices made of a dielectric thin film sandwiched by a pair of electrodes exhibit reversible multi-state switching behaviors; however coherent understanding of physical and chemical origins of their electrical properties needs to be further pursued to improve and customize the performance. In this paper, phase-field methodology is used to study the formation and annihilation of conductive channels resulting in reversible resistive switching behaviors that can generally occur in any dielectric thin films. Our focus is on the dynamical evolution of domains made of electrical charges under the influence of spatially varying electric field and temperature resulting in distinctive changes in electrical conductance.

中文翻译:

使用自洽相场方法对介电薄膜中的导电通道进行电热计算研究:对电阻开关物理起源的看法

大量实验研究表明,由一对电极夹着介电薄膜制成的两端电阻开关器件表现出可逆的多态开关行为;然而,需要进一步了解其电气特性的物理和化学起源,以改进和定制性能。在本文中,相场方法用于研究导电通道的形成和湮灭,导致可逆的电阻切换行为,这种行为通常可以发生在任何介电薄膜中。我们的重点是在空间变化的电场和温度的影响下,由电荷构成的域的动态演化,从而导致电导的明显变化。
更新日期:2020-10-28
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